Home / 165,812-228,822.18-90,362.12

Finding the Fourth Proportional to 165,812, 228,822.18 and 90,362.12

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Solution

The fourth proportional to 165,812, 228,822.18 and 90,362.12 is: 124,700.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,812 : 228,822.18 = 90,362.12 : x
  2. Step 2: Convert to fraction form
    165,812/228,822.18 = 90,362.12/x
  3. Step 3: Cross multiply
    165,812x = 228,822.18 × 90,362.12
  4. Step 4: Simplify right side
    165,812x = 20,676,857,287.82
  5. Step 5: Solve for x
    x = 20,676,857,287.82/165,812
  6. Step 6: Final answer
    x = 124,700.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.